Merge tag 'drm-intel-next-fixes-2017-09-07' of git://anongit.freedesktop.org/git/drm-intel

Pull i916 drm fixes from Rodrigo Vivi:
 "Since Dave is on paternity leave we are sending drm/i915 fixes for
  v4.14-rc1 directly to you as he had asked us to do.

  The most critical ones are the GPU reset fix for gen2-4 and GVT fix
  for a regression that is blocking gvt init to work on your tree.

  The rest is general fixes for patches coming from drm-next"

Acked-by: Dave Airlie <airlied@redhat.com>

* tag 'drm-intel-next-fixes-2017-09-07' of git://anongit.freedesktop.org/git/drm-intel:
  drm/i915: Re-enable GTT following a device reset
  drm/i915: Annotate user relocs with __user
  drm/i915: Silence sparse by using gfp_t
  drm/i915: Add __rcu to radix tree slot pointer
  drm/i915: Fix the missing PPAT cache attributes on CNL
  drm/i915/gvt: Remove one duplicated MMIO
  drm/i915: Fix enum pipe vs. enum transcoder for the PCH transcoder
  drm/i915: Make i2c lock ops static
  drm/i915: Make i9xx_load_ycbcr_conversion_matrix() static
  drm/i915/edp: Increase T12 panel delay to 900 ms to fix DP AUX CH timeouts
  drm/i915: Ignore duplicate VMA stored within the per-object handle LUT
  drm/i915: Skip fence alignemnt check for the CCS plane
  drm/i915: Treat fb->offsets[] as a raw byte offset instead of a linear offset
  drm/i915: Always wake the device to flush the GTT
  drm/i915: Recreate vmapping even when the object is pinned
  drm/i915: Quietly cancel FBC activation if CRTC is turned off before worker

1 files changed, 19 insertions, 9 deletions

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 287c6ead95b3..57317715977f 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -695,12 +695,11 @@ flush_write_domain(struct drm_i915_gem_object *obj, unsigned int flush_domains)
 	switch (obj->base.write_domain) {
 	case I915_GEM_DOMAIN_GTT:
 		if (INTEL_GEN(dev_priv) >= 6 && !HAS_LLC(dev_priv)) {
-			if (intel_runtime_pm_get_if_in_use(dev_priv)) {
-				spin_lock_irq(&dev_priv->uncore.lock);
-				POSTING_READ_FW(RING_ACTHD(dev_priv->engine[RCS]->mmio_base));
-				spin_unlock_irq(&dev_priv->uncore.lock);
-				intel_runtime_pm_put(dev_priv);
-			}
+			intel_runtime_pm_get(dev_priv);
+			spin_lock_irq(&dev_priv->uncore.lock);
+			POSTING_READ_FW(RING_ACTHD(dev_priv->engine[RCS]->mmio_base));
+			spin_unlock_irq(&dev_priv->uncore.lock);
+			intel_runtime_pm_put(dev_priv);
 		}
 
 		intel_fb_obj_flush(obj,
@@ -2213,7 +2212,7 @@ i915_gem_object_put_pages_gtt(struct drm_i915_gem_object *obj,
 static void __i915_gem_object_reset_page_iter(struct drm_i915_gem_object *obj)
 {
 	struct radix_tree_iter iter;
-	void **slot;
+	void __rcu **slot;
 
 	radix_tree_for_each_slot(slot, &obj->mm.get_page.radix, &iter, 0)
 		radix_tree_delete(&obj->mm.get_page.radix, iter.index);
@@ -2553,6 +2552,9 @@ static void *i915_gem_object_map(const struct drm_i915_gem_object *obj,
 	GEM_BUG_ON(i != n_pages);
 
 	switch (type) {
+	default:
+		MISSING_CASE(type);
+		/* fallthrough to use PAGE_KERNEL anyway */
 	case I915_MAP_WB:
 		pgprot = PAGE_KERNEL;
 		break;
@@ -2583,7 +2585,9 @@ void *i915_gem_object_pin_map(struct drm_i915_gem_object *obj,
 	if (ret)
 		return ERR_PTR(ret);
 
-	pinned = true;
+	pinned = !(type & I915_MAP_OVERRIDE);
+	type &= ~I915_MAP_OVERRIDE;
+
 	if (!atomic_inc_not_zero(&obj->mm.pages_pin_count)) {
 		if (unlikely(IS_ERR_OR_NULL(obj->mm.pages))) {
 			ret = ____i915_gem_object_get_pages(obj);
@@ -3258,7 +3262,13 @@ void i915_gem_close_object(struct drm_gem_object *gem, struct drm_file *file)
 
 		vma = radix_tree_delete(&ctx->handles_vma, lut->handle);
 
-		if (!i915_vma_is_ggtt(vma))
+		GEM_BUG_ON(vma->obj != obj);
+
+		/* We allow the process to have multiple handles to the same
+		 * vma, in the same fd namespace, by virtue of flink/open.
+		 */
+		GEM_BUG_ON(!vma->open_count);
+		if (!--vma->open_count && !i915_vma_is_ggtt(vma))
 			i915_vma_close(vma);
 
 		list_del(&lut->obj_link);